RCF ND950 1.4 Neo Mid‑High Compression Driver — 4.0" Titanium Diaphragm, 1.4" Exit, 140 W / 280 W, 8 Ω

GENERAL Brand: RCF Model Number: 15129038 ND950 1.4 UPC: 728990193860 OVERVIEW The ND950 1.4 is an ultra-compact, high-performance compression driver built around a 4.0-inch diaphragm and a 1.4-inch exit throat. Designed for demanding pro-audio applications, it combines a lightweight neodymium magnet assembly and a precision copper inductance ring to improve transient response, control moving mass and extend the high-frequency output with reduced distortion. The diaphragm is a 0.05 mm thick pure titanium dome paired with a high-strength Mylar suspension and polyimide surround for reliable operation. Its optimized 4-slot phase plug geometry and minimum-size 4" driver footprint make it ideal where space and performance are both critical. KEY FEATURES - 4-inch diaphragm with 1.4-inch exit throat / pure titanium compression driver - Program power handling: 280 W - Power handling capacity: 140 W - Frequency range: 500 Hz - 20 kHz - 4-slot optimized geometry phase plug - Titanium diaphragm with polyimide surround - Copper inductance ring for extended response - Minimum-size 4" driver available - Neodymium magnet assembly - Thin copper ring precision-pressed on the pole piece to lower inductance and extend acoustic response TECHNICAL SPECIFICATIONS Exit Throat Diameter: 1.4 inch / 36 mm Related Impedance: 8 ohm Program Power watt: 280 W Power handling capacity: 140 W Sensitivity: 110 dB Frequency range: 500 - 20000 Hz Suspension Design: Flat Minimum Impedance ohm: 8.50 ohm Voice Coil Diameter: 4.0 inch / 102 mm Voice Coil Former Design: Direct Drive Kapton Number of layers: 1 Kind of layers: inside/outside Flux Density: 2.0 T Phase Plug Design: 4 slot Bl factor Bl T x m: 17.60 T x m MOUNTING & DIMENSIONS Overall diameter: 146 mm / 5.75 inch Overall height: 60 mm / 2.36 inch Mounting: 4 x 6 mm threaded holes at 90° COMPLIANCE & WEIGHT Safety agency: CE compliant Weight: 3.5 kg / 7.72 lbs PACKAGE (SHIPPING) INFORMATION Package Height: 79 mm / 3.11 inch Package Width: 169 mm / 6.65 inch Package Depth: 171 mm / 6.73 inch Package Weight: 3.7 kg / 8.16 lbs The ND950 1.4 is intended for professional transducer applications where compact size and high-frequency accuracy are required. Its combination of titanium dome, optimized phase plug, copper damping ring and powerful neodymium motor delivers improved efficiency, tighter control of dome motion, and reduced HF distortion for clear, detailed mid/high reproduction.